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Categories: Energy: Nuclear, Engineering: Graphene
Published A shield for 2D materials that adds vibrations to reduce vibration problems
(via sciencedaily.com) A new study demonstrates a new, counterintuitive way to protect atomically-thin electronics -- adding vibrations, to reduce vibrations. By squeezing a liquid-metal gallium droplet, graphene devices are painted with a protective coating of gallium-oxide that can cover millimeter-wide scales, making it potentially applicable for industrial large-scale fabrication. The new technique improves device performance as well as protecting 2D materials from thermal vibration in neighboring materials.
Published Mitigating corrosion by liquid tin could lead to better cooling in fusion reactors
(via sciencedaily.com) Researchers have clarified the chemical compatibility between high temperature liquid metal tin (Sn) and reduced activation ferritic martensitic, a candidate structural material for fusion reactors. This discovery has paved the way for the development of a liquid metal tin divertor, which is an advanced heat-removal component of fusion reactors. A device called a divertor is installed in the fusion reactors to maintain the purity of the plasma. For divertors, there has been demand for liquid metals that can withstand extremely large heat loads from high-temperature plasma.
Published National Ignition Facility achieves fusion ignition
(via sciencedaily.com) The U.S. Department of Energy (DOE) and DOE's National Nuclear Security Administration (NNSA) has announced the achievement of fusion ignition at Lawrence Livermore National Laboratory (LLNL) -- a major scientific breakthrough decades in the making. On Dec. 5, a team at LLNL's National Ignition Facility (NIF) conducted the first controlled fusion experiment in history to reach this milestone, also known as scientific energy breakeven, meaning it produced more energy from fusion than the laser energy used to drive it.
Published Nanomaterial influences gut microbiome and immune system interactions
(via sciencedaily.com) The nanomaterial graphene oxide -- which is used in everything from electronics to sensors for biomolecules -- can indirectly affect the immune system via the gut microbiome, as shown in a new study on zebrafish.
Published New life flashed into lithium-ion anodes
(via sciencedaily.com) Chemists use flash Joule heating to recover graphite anodes from spent lithium-ion batteries at a cost of about $118 per ton.
Published New way to produce important molecular entity
(via sciencedaily.com) A team presents a new, direct way to produce unsymmetrically constructed vicinal diamines. These structures are relevant for the function of biologically active molecules, natural products and pharmaceuticals.
Published Palm e-tattoo can tell when you're stressed out
(via sciencedaily.com) Researchers have applied emerging electronic tattoo (e-tattoo) technology to the tricky task of measuring stress levels by attaching a device to people's palms.
Published New carbon nanotube-based foam promises superior protection against concussions
(via sciencedaily.com) A lightweight, ultra-shock-absorbing foam made from carbon nanotubes is so good at absorbing and dissipating the energy of an impact, it could vastly improve helmets and prevent concussions and other traumatic brain injuries.
Published Quantum algorithm of the direct calculation of energy derivatives developed for molecular geometry optimization
(via sciencedaily.com) Researchers have successfully extended the quantum phase difference estimation algorithm, a general quantum algorithm for the direct calculations of energy gaps, to enable the direct calculation of energy differences between two different molecular geometries. This allows for the computation, based on the finite difference method, of energy derivatives with respect to nuclear coordinates in a single calculation.
Published Small modular reactor waste analysis report
(via sciencedaily.com) Small modular nuclear reactors, which offer greater flexibility and lower upfront cost than large nuclear reactors, have both some advantages and disadvantages when it comes to nuclear waste generation.
Published Asphaltene changed into graphene for composites
(via sciencedaily.com) The flash Joule heating process turns asphaltenes, a byproduct of crude oil production, into graphene for use in composite materials.
Published How does radiation travel through dense plasma?
(via sciencedaily.com) Researchers provide experimental data about how radiation travels through dense plasmas. Their data will improve plasma models, which allow scientists to better understand the evolution of stars and may aid in the realization of controlled nuclear fusion as an alternative energy source.
Published How long can exotic nuclei survive at the edge of stability?
(via sciencedaily.com) A new study has measured how long it takes for several kinds of exotic nuclei to decay. The paper marks the first experimental result from the Facility for Rare Isotope Beams. It is just a small taste of what's to come at the facility, which will become 400 times more powerful over the coming years. Scientists used the facility to better understand nuclei, the collection of protons and neutrons found at the heart of atoms. Understanding these basic building blocks allows scientists to refine their best models and has applications in medicine, national security, and industry.
Published Researchers learn to engineer growth of crystalline materials consisting of nanometer-size gold clusters
(via sciencedaily.com) First insights into engineering crystal growth by atomically precise metal nanoclusters have been achieved in a new study.
Published Growing pure nanotubes is a stretch, but possible
(via sciencedaily.com) Researchers have published a new theory for making batches of carbon nanotubes with a single, desired chirality. Their method could simplify purification of nanotubes that are all metallic or all semiconductors.
Published Material separates heavy water from ordinary water
(via sciencedaily.com) A research group has made a material that can effectively separate heavy water from normal water at room temperature. Until now, this process has been very difficult and energy intensive. The findings have implications for industrial -- and even biological -- processes that involve using different forms of the same molecule.
Published New study introduces the best graphite films
(via sciencedaily.com) A recent study has proposed a strategy to synthesize single-crystalline graphite films orders of magnitude large, up to inch scale.
Published Discovery of a fundamental law of friction leads to new materials that can minimize energy loss
(via sciencedaily.com) Chemists and engineers have discovered a fundamental friction law that is leading to a deeper understanding of energy dissipation in friction and the design of two-dimensional materials capable of minimizing energy loss.
Published In nanotube science, is boron nitride the new carbon?
(via sciencedaily.com) Engineers synthesized aligned forests of nanoscale fibers made of boron nitride, or 'white graphene.' They hope to harness the technique to fabricate bulk-scale arrays of these nanotubes, which can then be combined with other materials to make stronger, more heat-resistant composites, for instance to shield space structures and hypersonic aircraft.
Published Trapping polaritons in an engineered quantum box
(via sciencedaily.com) Researchers have engineered a quantum box for polaritons in a 2D material, achieving large polariton densities and a partially 'coherent' quantum state. New insights from the novel technique could allow researchers to access striking 'collective' quantum phenomena in this material family, and enable ultra-energy efficient and high-performance future technologies. Laying a 'small' 2D material on top of a 'large' layer allowed the researchers to trap and investigate polaritons, comparing them with freely moving polaritons.